Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Cassiterite from
Tourais-Lages Mining Field, Tourais e Lajes, Seia, Guarda, Portugal


Locality type:Mining Field
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Tourais-Lages Mining Field, Tourais e Lajes, Seia, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:916711
Long-form Identifier:1:3:916711:7
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
5.1km (3.2 miles) ⓘPontinha No. 4 quarry, Pinhanços, Seia, Guarda, Portugal
5.8km (3.6 miles) ⓘParanhos Mining Field, Paranhos, Seia, Guarda, Portugal
6.5km (4.0 miles) ⓘQuinta das Ferragens, Moimenta da Serra e Vinhó, Gouveia, Guarda, Portugal
8.0km (5.0 miles) ⓘOlival da Meia Légua Mine, Carragozela e Várzea de Meruge, Seia, Guarda, Portugal
8.2km (5.1 miles) ⓘAljão Mine, Cativelos, Gouveia, Guarda, Portugal
8.4km (5.2 miles) ⓘCorga da Poldrinha Mine, Seixo da Beira, Oliveira do Hospital, Coimbra, Portugal
9.3km (5.8 miles) ⓘBoco Mine, Arcozelo, Gouveia, Guarda, Portugal
10.1km (6.3 miles) ⓘCorga Mine, Seixo da Beira, Oliveira do Hospital, Coimbra, Portugal
10.7km (6.7 miles) ⓘPedras do Estanho Mine, Vila Cova-à-Coelheira, Seia, Guarda, Portugal
11.7km (7.3 miles) ⓘA Quinta Mine, Arcozelo, Gouveia, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 2073SnTi
 
and/or  
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